Treatment Outcomes Across Ten Months of Combined Inpatient and Outpatient Treatment In a Traumatized and Dissociative Patient Group

Abstract

Thirty-seven inpatients in a hospital-based Trauma Program completed a set of measures at admission and at 6 and 10-months follow-up. On the Dissociative Disorders Interview Schedule, the average number of secondary features of dissociative identity disorder at baseline was 3.6 (SD ⇤ 4.2), and the average score on the Dissociative Experiences Scale (DES) was 37.8 (SD ⇤ 21.9). At 10 months follow-up, average scores on the DES had declined significantly from 37.8 to 31.1; average scores on the Beck Depression Inventory-II had declined from 36.9 to 24.3; and average scores on the Somatoform Dissociation Questionnaire had declined from 41.5 to 32.5. Treatment outcomes for complex dissociative disorders are supported by replicated prospective studies and are evidence based at Level II according to the criteria of the United States Preventive Services Task Force